Cap with valve

Details Cap with valve Cap with valve

1986-04-25

1987-05-19

Hall, George T.

Receptacles

Closures

With condition responsive vent or valve

B65D 5116

Patent

active

046660569

ABSTRACT:
A cap with valve of the invention is provided with a negative pressure valve at a fluid entering flow path in a closure installed to an aperture of a container, so that fluid flows into the container from outside when pressure in the container is decreased, thereby decrease of the pressure in the container is prevented. A filter cloth is arranged to the fluid entering flow path at the front side of the negative pressure valve and swells to the fluid entering side so as to cover the flow path.

REFERENCES:
patent: 4079855 (1978-03-01), Avrea
patent: 4498493 (1985-02-01), Harris
patent: 4498599 (1985-02-01), Avrea
patent: 4540103 (1985-09-01), Kasugai et al.
patent: 4588102 (1986-05-01), Kasugai

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